Collection of Bubbels is easy. On any product you buy at scubaguide.eu you will earn Bubbels.
If you have enough Bubbels on your account, you can convert them into a discount voucher that you can spend on scubaguide.eu.

In order to see how many Bubbels you have earned you go to (logged in) "My Account".
at "My orders" the link "Check total Bubbels ..".
On this page you can convert your Bubbels into a discount voucher.

Silicon spray is easy to use in and on areas where you can't reach with a finger of silicon.